John w



(No Model.) 7

. J. W. GRAB-Y.

- INGASED FILE. NO. 352,045. Patented NOV. 2, 1886.

INVENTOR wz M ATTORNEYS.

WITNESSES:

N. PHERS. Phwrmmmn Walhinglan. b v:

UNITED STATES PATENT A OFFICE.

JOHN W. ORARY, OF BLUFF SPRINGS, FLORIDA.

lNGASED PlLE.

SPECIFICATION forming part of Letters Patent No. 352,045, dated November2, 1886.

Application filed February 17, 1886. Serial No. 192,210. (No model.)

To aZZ whom it may concern.-

Beit known that I, J oHNW. CRARY, of Bluff Springs, in the county ofEscambia and State of Florida, have invented a new and usefulImprovement in Incased Piles, of which the following is a specification,reference being had to the annexed drawings, forming a part thereof, inwhich Figure 1 is aside elevation, partly in sec My'invention isespecially adapted to piles' for piers, docks, bridges, and similarstructures.

My invention consists of the construction and arrangement of parts, aswill be hereinter described, and specifically pointed out in the claims.

In carrying out my invention, Idrive the pile A in the usual way, andbuild around it a platform, B, which I suspend from one or morec-rossbars, 0, supported by the top of the pile, by means of ropes a,connected with the platform and extending over sheaves I), supported bythe cross bar or bars to suitable mechanism for sustaining, raising, orlowering the platform B.

The operation of incasing the pile with brick or cement begins when theplatform B is at the surface of the water in which the pile is driven.The first tier, 0, of the casing is built directly upon the platform'andaround the pile, leaving a space, d, between the casing and the pile forcement. The second tier, 0, is laid upon the first tier, 0, the thirdtier, 0, is laid upon the second tier, and as the different tiers of thecasing are added in succession the platform B is lowered until itfinally restson the bottom or it may be sunk below the general level ofthe bottom, as shown in Fig. 2, by any of the well-known means.

the casing is complete, the space d between the casing and the pile isfilled with a suitable cement.

Instead of employing a single casing, as shownin Fig. 1, I may placeoutside of the When tiers, cc, &c., other tiers of circular bricks,

thus increasing the diameter of the casing, and correspondinglyincreasing its strength.

The bricks may be laid in close contact with the pile, as shown in Fig.2, without employing cement between them and the pile, and instead ofemploying bricks to inclose the pile I may use tile pipes of clay or ofcement of sufficient size to inclose the pile and receive between it andthe pile. sufficient cement to form a pier of the required diameter.After the last tier of brick or other material of which the casing isformed has been laid, the top of the pile is squared, and a metalliccap, D, is placed over the top for receiving the superstructure. Ifdesired, the casing surrounding the pile may be conical or pyramidal.Where the bottom is soft, these forms would -offer a largebearing-surface, and prevent the sinkingof the casing below the bottom.

If desired, the platform B may consist of several rings or circlesdiminishing in diameter, which, when put together, would form a steppedcone or vase, upon the steps of which the different courses of brick mayrest.

Having thus described my invention, what- I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with the pile A, of the platform B, a casing ofbrick or analogous material resting on the platform, and means forsupporting, raising, and lowering the platform, substantially as hereinshown and described.

2. The combination, with the pile A, of the platform B, having a centralaperture through which the pile passes, means for raising and loweringthe platform on the pile, and the two-part circular section forming thecasing resting on the platform and surrounding the pile, substantiallyas set forth.

3. The combination, with a pile, A, to. be 'incased, of the platform B,having a central aperture through which the pile passes, a cross-piece,O, on the pile, pulleys b, and ropes ICC a, secured to the platform andpassed up over top of the pile and casing, substantially as herein shownand described.

Witnesses: J L W.

' A. E. DE LA RHEA,

M. PALMEs.

CRARY.

